Remember this acronym, for all muscle/skeletal injuries.
R.I.C.E.
Rest
Ice
Compression
Elevation
Stay off of it, let it rest and heal
Put ice on it, I usually do 10 min on and 10 min off, but def not more than 20 min on or if it gets "numb"
Compression, use an ace wrap etc, but keep it unwrapped at night when you sleep.
Elevation..will help bring the swelling down.
On top of all that you can use NSAIDS like motrin, tylenol, etc. I do not have any experiance with cissus, but many like it.